After that kissed, Sehun never saw her again. He just left the letter at Ahyoung's studio, decided not to see her anymore, and moved on. But, one day he got a letter from twelve years ago. A sweet letter was written by Kim Ahyoung for him, for them. Not only that but Kim Ahyoung appeared in front of him again and they would see each other again every day. And, they couldn't help to fall for second but what will Sehun do when he finds out her dark past?  As well as